WTH is mcp_session_id which it asks for the first request?

[PHANTOM9009]

I am on day 3 while trying to figure out the server, i have my own OAuth flow for atlassian and i am sending the OAuth token and CloudID everytime with the axios request, the issue is: it is always returning me that the mcp_session_id is missing or wrong whenever i am passing any random guid, what the hell is this? upon exploring the code i am not able to see anywhere where they are using it, but somehow it is throwing error. i have turned on logs using their useless docker configs, they are useless for finding out what i missed. This is the most complex MCP server i have used. can someone help me whoever has faced the same issue? ultimately i ended up creating my own APIs for the AI agent, instead of giving it the useless MCP server created sooperset. NOT AT ALL INTUITIVE TO SETUP AND USE FOR PRODUCTION PURPOSE!!!!!!!